C, pasted on Oct 13:
 ```1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 ``` ```#include #include #include #define MAX 100 void nhap (int a[], int &n) { do { printf("\nNhap so phan tu: "); scanf("%d", &n); if(n <= 0 || n > MAX) { printf("\nSo phan tu khong hop le. Xin kiem tra lai !"); } }while(n <= 0 || n > MAX); for(int i = 0; i < n; i++) { printf("\nNhap a[%d]: ", i); scanf("%d", &a[i]); } } void xuat(int a[], int n) { for(int i = 0; i < n; i++) { printf("%4d", a[i]); } } int DemPhanTuChiXuatHien1Trong2Mang(int a[], int b[], int na, int nb) { int flag, dem = 0; for(int i = 0; i < na; i++) { flag = 1; for(int j = 0; j < nb; j++) { if(a[i] == b[j]) { flag = 0; break; } } if(flag == 1) { dem++; } } for(int i = 0; i < nb; i++) { flag = 1; for(int j = 0; j < na; j++) { if(b[j] == a[i]) { flag = 0; break; } } if(flag == 1) { dem++; } } return dem; } int main() { int na, nb; int a[MAX], b[MAX]; printf("\nNhap mang a:"); nhap(a, na); xuat(a, na); printf("\nNhap mang b:"); nhap(b, nb); xuat(b, nb); int dem = DemPhanTuChiXuatHien1Trong2Mang(a, b, na, nb); printf("\nSo phan tu chi xuat hien 1 trong 2 mang la: %d", dem); getch(); return 0; } ```

Output:
 ```1 2 3 4 5 6 7 8 9 10 11 ``` ```Line 17: error: conio.h: No such file or directory Line 6: error: expected ';', ',' or ')' before '&' token In function 'xuat': Line 26: error: 'for' loop initial declaration used outside C99 mode In function 'DemPhanTuChiXuatHien1Trong2Mang': Line 35: error: 'for' loop initial declaration used outside C99 mode Line 38: error: 'for' loop initial declaration used outside C99 mode Line 51: error: redefinition of 'i' Line 35: error: previous definition of 'i' was here Line 51: error: 'for' loop initial declaration used outside C99 mode Line 54: error: 'for' loop initial declaration used outside C99 mode ```

sẽ ra sai nếu xuất hiện THop: mảng có 2 pt chỉ xuất hiện 1 lần.
VD: 7 7 8 9 5
6 8 9 5 3
output: 4--> sai.

//Bài này ad làm thiếu TH có các phần tử trùng nhau trong 1 mảng.
#include<iostream>
using namespace std;
int demPT(int a[], int b[], int n, int m){
int dem=0;
for(int i=0; i<n; i++){
int stop=0;
for(int j=0; j!=i && j<n; j++){
if(a[i]==a[j]){
stop=1;
break;
}
}
if(stop==0){
for(int k=0; k<m; k++){
if(a[i]==b[k]){
stop=1;
break;
}
}
if(stop==0) dem++;
}
}
return dem;
}
main(){
int n, m, dem=0;
cin>>n>>m;
int a[n], b[m];
for(int i=0; i<n; i++) cin>>a[i];
for(int i=0; i<m; i++) cin>>b[i];
cout<<demPT(a,b,n,m) + demPT(b,a,m,n)<<endl;
}